sainsmartMini DSO213 Handheld Pocket-Sized Digital Storage Oscilloscope 4 Channels

Did quite a bit of checking this unit before committing to get one but so far everyone reviewing it is doing mostly un-boxing and they leave out the most important info that everyone is after. So I decided to get it and answer these questions for the community and for the seller to perhaps adjust a few things.This unit as tested is hardware version 2.0, app is v1.22.Schematic, firmware and open source code is available at minidso.comFirst, the goods:- a very nice looking unit made of all-aluminum case.- controls are smartly placed and all the navigation is via rotary wheels on top- screen is 2.5"x 1.75" (manufacturer advertises it as 3")- navigation thru the menus is surprisingly easy after getting used to the unit- a perfect unit for general electronic circuit poking that requires portabilityThe not-so-goods:- The bandwith of DS213 is NOT 15MHz as advertised. Check out the signal shape at 10MHz in the attached pictures. It looks like sawtooth comparing to what it should look on my Tek scope. You're really buying a 1-2MHz bandwidth unit for that money.- The probes are wiggling and the connection is not very good. The MCX connectors are not meant for multiple insertions.- the unit is not very accurate in measuring above the bandwidth frequency .-There are bugs with the current firmware that affect trigger, measuring, etc.- price: well- you're paying for a 15MHz bandwidth unit but you're getting a 1MHz unit. That tells it all.- you need the manual in order to access certain functions such as saving system configuration.- Not a touch screen as advertised on some websites!- a little slippery so if you're planning to get one, get a rubbery sleeve.What I'd love to see added in the 1.23 app:- autoset function- cursors which are now only two arrows top and bottom or left to right should be dotted lines- fix the trigger issue and inconsistencies in measurementsIn conclusion: a perfect unit for basic electronics poking UNDER 1MHz, nicely built. Will I keep it? Well, I will study the schematic and try to simulate squeezing at least 5MHz out of it and hopefully the updated upcoming app fixes the current issues. I have till November 4 to return it. If the app is not fixed it will go back as the price is not really matching the goods.Update - October 8, 2019: took the testing one step further and after replacing the probes the unit came with with low-capacitance ones, terminating them properly and re-doing the bandwidth test, the unit squeezes barely 8MHz. So, it looks like the advertised 15MHz bandwidth is probably a combination of a stretched wished bandwidth and an ideal environment which is is not realistic in day-to-day measurements. So, for those who are picky, I suggest buy the MCX-BNC adapters and use high quality scope probes for squeezing the most out of this baby.

Really good scope for use in the field.

Das Taschenoszilloskope DS213 macht äußerlich einen sehr wertigen Eindruck. Die Menüführung ist logisch aufgebaut und man findet sich gleich zurecht, sofern man mit Oszilloskope generell vertraut ist. Der Funktionsumfang ist erstaunlich.Die Dokumentation ist äußerst sparsam. Angaben zur Messrichtigkeit fehlen vollständig. Das Protokoll der CSV-Files ist ebenfalls nicht dokumentiert. Die mitgelieferten Tastköpfe hatten zwar eine zuschaltbare 1:10 Abschwächung, aber sie war unbrauchbar, weil die Teiler-Impedanzen nicht abgeglichen waren. Eine Anleitung zum Abgleich fehlte ebenso.Fazit: ein gut gebautes, portables Gerät zum Visualisieren von Signaländerungen. Als Messgerät ist es wenig geeignet.

This is a good ‘hobby’ oscilloscope with limited specs. It can’t compare with bench-top oscilloscopes that provide better technical specs for about $100 more, but if budget and portability is a key factor then this is a good tool. It’s bandwidth is limited, and operating the two control dials takes a little practice. The MX probe connections feel like they could be a bit fragile. Bottom line: it’s a fun tool to use, and produces very good results when used within its capabilities.

Magnifique engin de qualité ,j'ai utilisé pour éliminer les courbes de mon signal de contrôle d amplifications d'un module RF avec succès .. merci . Très satisfaite , difficile a comprendre quand on a jamais utilisé de oscilloscope , mais avec internet et le manuel d utilisation on parvient a comprendre tout les fonctions en 2 heures . Il est très petit " peut tenir dans les plus petites poche " construction solide et précise. Par contre le probe 1x/10x est de Basse qualité , le négatif manque de temps à autre ... Mais sûre le 1x ça tien bien. L'écran trop petit mais reste très lisibles et de belle couleur . Pour le prix , je considère cette oscilloscope un très bon achat .